Irrigation water drainage unit



FIG. 1 is a top front perspective view of an irrigation water drainage unit, showing my new design;

FIG. 2 is an elevational view of one side thereof, the opposite side being a mirror image thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top front perspective view of a second embodiment thereof;

FIG. 8 is an elevational view of one side of the embodiment of FIG. 7, the opposite side being a mirror image thereof;

FIG. 9 is a rear elevational view of the embodiment of FIG. 7;

FIG. 10 is a front elevational view of the embodiment of FIG. 7;

FIG. 11 is a top plan view of the embodiment of FIG. 7; and

FIG. 12 is a bottom plan view of the embodiment of FIG. 7. 

The ornamental design for an irrigation water drainage unit, as shown and described. 